Building
(Building summary)
ISSO heat loss (advanced)
Glazing
(Glazing summary)
Ventilation
(Ventilation Summary)
Outside occupancy while air is moving: full HRV recovery (recirculation assumption), unless summer night ventilation overrides it.
Heating and cooling
(Heating and cooling summary)
Target temperatures for space heating and active cooling.
When full heating and cooling setpoints apply relative to the occupancy window (start/end under Occupancy → Details). “Standard” and “Comfort” extend thermostat control by one hour before and after; gains and ventilation follow the strict window and ventilation settings.
Upper limits for delivered power in the hourly simulation. Fixed climate profiles use matching defaults; with “custom” you set both limits yourself.
Default value in light gray in the field (insulation profile, NTA building category, desired indoor temperature). Empty input uses that value in the calculation; overrides are saved. Only with dynamic heat pump COP; affects the COP curve.
Compressor and boost behaviour (dynamic)
Same logic as air-water: thermal compressor cap; above it full resistive boost. Empty = unlimited. Legacy: kWel → kWel × heating SCOP on load.
Optional: circulation pumps and controls besides SCOP. Default flat rate is technical; use NTA 8800/EPA values for EP.
Occupant behavior
(No extra effects (themes off; domestic hot water normal))
Choose scenarios per item that adjust infiltration and internal gains during occupied hours (impact off–high where applicable; occupancy level has its own options).
During occupancy: scales 72 W/person and entered internal gains (equipment). Low: −50 % and −40 %; busier: +30 % on both. Default: as specified.
Scales computed annual volume, energy and storage. Base volume uses max(daytime, off-hours occupancy) per litre/shower inputs.
Energy control and batteries
DHW profile, HP daytime, EV, battery
Electric DHW (profile)
Per occupancy profile: residential uses kWh/person (household), office and education use kWh/m². Electricity use is also counted as internal heat gain.
